Welcome to HeathCare Magic
I can understand your concern. you should not worry babies usually get
jaundice in your case it seems that your baby is not getting enough Milk. Insufficient liquid causes the concentration of
bilirubin in the blood to rise. So if your baby is
breastfeeding and not yet getting plenty of breast milk, it's more likely that he'll become jaundiced. (It's possible for a formula-fed baby to get jaundice, too, if he's not getting enough formula.)
You should increase has breast feeding or formula milk decrease the semi-solid food. usually jaundice at this stage is not treated if it is mild.
You should check has bilirubin level through simple
blood test to know the level of bilirubin in has blood and counsel with your
pediatrician. He will will examine your baby and further guide you .
I hope have answered your query. feel free to ask
Wish your son good health.
Regards